Is it only by "id"

[allensoberano]

When referencing the element, I've only been able to do it by "id". Are you not able to reference the node by "class" as well? Whenever I try to reference by "class", the following code errors
let nodeShape = self.node.nodeBy(tag: nodeTag) as! Shape
because` it's always nil, but if an "id" is added to the class then it works just fine by id reference.

The problem is the SVG I will be receiving will not have "ids" for specific objects I need to color in the SVG.

Examples:
This works fine because it has an 'id'
<circle id="circle1" cx="145.461" cy="308.524" r="18.8" transform="rotate(180,145.461,308.524)" />
but something like this is always returning nil:
<path class="sectionA" style="fill:#ffffff;stroke:#e5e5e5" d="M 53.695242,337.52531 L 176.63156,337.52531 L 176.63156,83.836587 L 53.695242,83.836587 L 53.695242,337.52531 z" />